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cimport cython
cimport check_fused_types_pxd
import math
ctypedef char *string_t
fused_t = cython.fused_type(int, long, float, string_t)
other_t = cython.fused_type(int, long)
base_t = cython.fused_type(short, int)
# complex_t = cython.fused_type(cython.floatcomplex, cython.doublecomplex)
cdef fused complex_t:
float complex
double complex
ctypedef base_t **base_t_p_p
# ctypedef cython.fused_type(char, base_t_p_p, fused_t, complex_t) composed_t
cdef fused composed_t:
char
int
float
string_t
cython.pp_int
float complex
double complex
int complex
long complex
cdef func(fused_t a, other_t b):
cdef int int_a
cdef string_t string_a
cdef other_t other_a
if fused_t is other_t:
print 'fused_t is other_t'
other_a = a
if fused_t is int:
print 'fused_t is int'
int_a = a
if fused_t is string_t:
print 'fused_t is string_t'
string_a = a
if fused_t in check_fused_types_pxd.unresolved_t:
print 'fused_t in unresolved_t'
if int in check_fused_types_pxd.unresolved_t:
print 'int in unresolved_t'
if string_t in check_fused_types_pxd.unresolved_t:
print 'string_t in unresolved_t'
def test_int_int():
"""
>>> test_int_int()
fused_t is other_t
fused_t is int
fused_t in unresolved_t
int in unresolved_t
"""
cdef int x = 1
cdef int y = 2
func(x, y)
def test_int_long():
"""
>>> test_int_long()
fused_t is int
fused_t in unresolved_t
int in unresolved_t
"""
cdef int x = 1
cdef long y = 2
func(x, y)
def test_float_int():
"""
>>> test_float_int()
fused_t in unresolved_t
int in unresolved_t
"""
cdef float x = 1
cdef int y = 2
func(x, y)
def test_string_int():
"""
>>> test_string_int()
fused_t is string_t
int in unresolved_t
"""
cdef string_t x = b"spam"
cdef int y = 2
func(x, y)
cdef if_then_else(fused_t a, other_t b):
cdef other_t other_a
cdef string_t string_a
cdef fused_t specific_a
if fused_t is other_t:
print 'fused_t is other_t'
other_a = a
elif fused_t is string_t:
print 'fused_t is string_t'
string_a = a
else:
print 'none of the above'
specific_a = a
def test_if_then_else_long_long():
"""
>>> test_if_then_else_long_long()
fused_t is other_t
"""
cdef long x = 0, y = 0
if_then_else(x, y)
def test_if_then_else_string_int():
"""
>>> test_if_then_else_string_int()
fused_t is string_t
"""
cdef string_t x = b"spam"
cdef int y = 0
if_then_else(x, y)
def test_if_then_else_float_int():
"""
>>> test_if_then_else_float_int()
none of the above
"""
cdef float x = 0.0
cdef int y = 1
if_then_else(x, y)
cdef composed_t composed(composed_t x, composed_t y):
if composed_t in base_t_p_p or composed_t is string_t:
if string_t == composed_t:
print x.decode('ascii'), y.decode('ascii')
else:
print x[0][0], y[0][0]
return x
elif composed_t == string_t:
print 'this is never executed'
elif list():
print 'neither is this one'
else:
if composed_t not in complex_t:
print 'not a complex number'
print <int> x, <int> y
else:
print 'it is a complex number'
print x.real, x.imag
return x + y
def test_composed_types():
"""
>>> test_composed_types()
it is a complex number
0.5 0.6
9 4
<BLANKLINE>
not a complex number
7 8
15
<BLANKLINE>
7 8
<BLANKLINE>
spam eggs
spam
"""
cdef double complex a = 0.5 + 0.6j, b = 0.4 -0.2j, result
cdef int c = 7, d = 8
cdef int *cp = &c, *dp = &d
cdef string_t e = "spam", f = "eggs"
result = composed(a, b)
print int(math.ceil(result.real * 10)), int(math.ceil(result.imag * 10))
print
print composed(c, d)
print
composed(&cp, &dp)
print
print composed(e, f).decode('ascii')
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